all sound ,no pic.help please

have downloaded firmware and had channels working. tried to download other firmware and lost picture on the box. have sound on all channels but no picture ..please help

 

have u tried to factory reset and autoscan?also check scart in tight.

 

thanks cactikid 4 replying but i got it fixed due to the help of noelyf and malci.spot on they ar.ya hav to download the logafile.but tanks a million,take care.